Combined heater-shield and ventilator.



Patented Aug. 7, I900.

A. B. SHANT Z. COMBINED HEATER SHIELD AND VENTILATOR.

(Application filed Aug. 4, 1897.)

(No Ilodel.)

6 MM 5. a

I l d J Invent-o r Witn as sea.-

1 R0,. WASHINGTON o c NITED STATES PATENT OFFICE.

ALLAN BAOHERT SHANTZ, OF CALEDONIA, CANADA, ASSIGNOR OF ONE- v HALF TO RICHARD C. CHESWRIGHT, OF SEAFORTH, CANADA.

COMBlNED HEATER-SHIELD AND VENTILATOR.

SPECIFICATION forming part of Letters latent No. 655,585, dated August '7, 1906.

Application filed August 4, 1897.

To all whom it may concern:

Be it known that I, ALLAN BACHERT SHANTZ, a subject of the Queen of Great Britain, residing at Caledonia, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in a Combined Heater-Shield and Ventilator, of which the following is a specification.

The invention has been patented in Canada January 20, 1897, No. 54,664..

This invention relates to a combined heatershield andventilator, and has for its object to provide a device of this character whereby the air of a room or rooms may be kept at an even predetermined temperature.

As is well known, there is a great deal of danger to health due' to improper ventilation, especially by arrangements which draw air into a room from a point near the ground, which must necessarily contain many impurities, such as effete animal matter, decaying animal and vegetable matter, microbes, Eases emanating from the ground, &c. This invention has for its object to provide an apparatus in which the air drawn into the room shall be supplied from an elevated point, where the air is more pure, and means for withdrawing the lower impure strata of air from the room and discharging the same into the outer atmosphere.

The invention therefore consists in the parts and combination of parts shown in the drawings, described in the specification, and more specifically pointed out in the claims.

In the drawings, Figure 1 is a perspective View of a complete apparatus, parts being broken away to exhibit the peculiar construction and arrangement of the several parts. Fig. 2 is a detail perspective View of the hinged flap.

A is a stove or it may be a heater of any description, such as a radiator, gas-stove, or any improved form of heating device.

13 is a stovepipe.

O is ashield which is provided with a suitable capping O and double walls 0 0 C is the base-board of the shield, and C is a perforated grating.

c is a ledge extending around the inside of the shield. c is a flap hinged to said ledge c and which may be adjusted in verticalv Serial No. 647,062. (No model.)

or horizontal position. (See Fig. 2.) When horizontal, it cuts off passage of air upward around the heater or stove proper. be noticed that the walls 0 of the shield extend, preferably, down a little below the level of the top of the flap when it is located in the upright position shown in the drawings.

D is a pipe leading from the enlarged space formed between the back side wall 0 and outer wall C The pipe D is formed with a flange (l, which rests upon the top C", and an extension D of the pipe D leads downwardly a short distance below the level of the top 0 The top of the pipe D extends into the open ventilating-hood E.

F is a pipe which extends from the top of the pipe D down to an opening in the bottom of the ledge c of the shield, through which it extends.

G is a damper of any suitable form, provided with a stem g, by which it is regulated. The damper G must be ring-shaped, so as to fit into the annular spaces between the pipes F and D. The ventilating-hood E is, as shown, on the roof H, or it may be placed in any other suitable position, depending upon the location of the room in the building. If there are several rooms, they may all have pipes leading to the same ventilating-hood; but this is only a matter of detailof construction and does not involve the system which I am enunciating.

The ventilating-hood is provided with a gable-roof E, through the apex of which extends a rod 1, at the top of which is fixed a weather-vane J. K is a cowl which is cylindrical in form and provided with a lower outwardly-extending flange is, which extends around over the top of the pipe D.

K is a curved pipe which extends out at the top through an opening in the cowl K and at the bottom is provided with a flange k, which extends around the top of the pipe F.

L is a spider which extends through the pipe F and is supported on the outerpipe D.

M is a spider which extends through the curved extension-pipe K to the cowl K, on which it is secured'in any suitable manner. The red I extends through the spider M, in which it is secured from rotation, and is It Will loosely journaled in the spiderL the same as it is in the apex of the gable-roof E.

K is an opening in one side of the cowl K.

It will now be understood that the weathervane being secured to the cowl will direct the opening K to the direction from which the wind is blowing. The fresh air passing through the opening K will pass down through the pipe D, as indicated by the arrows, and between the double walls (3 and C of the three sides of the shield, whence it passes up between the hinged flaps and the inner side of the shield and impinges upon the stove, the heat of which also tends to create a suction of the pure air in the direction indicated. The heated air now rises and heats the room. The lower or impure stratum of air is drawn up through the pipe F by reason of the curved pipe K being turned in the opposite direction to that from which the wind is blowing, creating a suction so as to cause the impure air to ascend. It will therefore be understood that a continuous circulation of air takes place through the down-pipe D, which air is heated and distributed through the room simultaneously with the ascent of foul air through the inner pipe F.

In order to provide for the moistening of the air, I provide a water-pan N, which is located, preferably, beneath the bottom of the pipe D upon the pipe F. The water in this pan of course has the effect of moistening the air as it comes into the room.

cends upwardly around the stove. If desired,

tion shown in the drawings when the room is sufficiently heated, and the circulation hereinbefore described will be produced-that is to say, when in horizontal position the flaps c hinder the ascent of fresh air from the; space below the stove, and consequently air to supply the combustion is taken from the body of vitiated air in the room. of the flaps a may be made sufliciently stiff so that the flap will remain in any position in which it may placed. It will be seen from this description that the force of the wind is utilized to impel the pure air into the room and draw out the impure air, thus keeping up a constant circulation and maintaining the room at an even temperature. As the stove or heater is surrounded by a shield, it will be readily seen that this portion of the room is protected from' undue heat. I find in practice that even when there is no fire in the stove or heating apparatus and the wind is blowing slightly the room is ventilated very completely. Although I have shown the outlet-pipe as extending, preferably, up through the center of the inlet-pipe, it will be I also provide upon the ledge c a water-pan 0 which 1 is likewise designed to impregnate the air} with a certain amount of moisture as it asf The hinges understood that such pipe might lead out through the wall. It will also be understood that not only the damper Gbut also the flaps 0 may be regulated to control the amount of fresh air supplied to the room.

There are various forms in which my do vice may be utilized without departing from the spirit of my invention.

What I claim as my invention is' 1. In a ventilating apparatus, a shield for a stove or other form of heater, the said shield having a double wall and intermediate air space and open at the bottom, a pipe leading up from the closed top of the double wall to outside of the roof, a cowl supported and journaled in the top of the pipe and provided with an intake-hole and a weather-vaneoom nected centrally to the cowl and designed to control its rotation so as to present the intake= opening toward the weather side, as and for the purpose specified.

2. In a ventilating apparatus, in combination, a shield provided with a double wall hav ing an intermediate air-space closed at ,the top and open at the bottom, a heater surrounded by the shield, an inlet-pipe eXtending upwardly from the top of the hollow wall to the outside of the roof, a cowl supported and journaled in the top of the pipe and provided with an intake-hole and a Weather-vane connected centrally to the cowl and design-ed to control its rotation so as to present the intake-opening toward the weather side,-as and for the purpose specified.

3. In a ventilating apparatus, in combi-na tion a shield provided with adouble wall hav-' ing an intermediate air-space closed at the top and open at the bottom, the inner wall being shorter than the outer wall,- a ledge formed at the bottom of the outer wall and having an upwardly-projecting adjustable flap, a heater located within the shield and an inlet-pipe extending from the top of the shield to the outside of the roof and suitable means for causing the current of air to pass downwardly into the shield, as and for the purpose specified.

4:. Ina device of the class described, the

combination with a stove, of a shield having a double wall forming an intermediate airspace, the capping at the top of the double wall, the ledge and opening at the bottom, the grating extending beneath the ledge around the bottom of the shield and the inlet-pipe arranged as and for the purpose specified.

5. In a device of the class described, the combination with a stove, of a shield having a double wall forming an intermediate airspace, the capping at the top of the double wall, the ledge and openingat the bottom and the moisture-pan designedto rest on the ledge beneath the opening, as and for the purpose specified.

6. In a device of the class described,- the combination, with a stove, of a shield, having a double wall forming an intermediate airspace which is olosed at the top and open at air-space at the back down through the bot tom back wide ledge and up through the top of the inlet-pipe, as and for the purpose speci- 15 'In testimony that I claim the foregoing as my invention I have signed my name in the presence of two subscribing witnesses.

ALLAN BACHERT SHANTZ.

Witnesses:

W. W. BROWN, CHAS. RICHARDS; 

